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Re: [RFC PATCH] Optionally use -mlong-double-128 by default on {powerpc{,64},s390{,x},sparc,alpha}-linux
- From: Roland McGrath <roland at redhat dot com>
- To: Jakub Jelinek <jakub at redhat dot com>
- Cc: Andreas Schwab <schwab at suse dot de>, Benjamin Kosnik <bkoz at redhat dot com>, rth at redhat dot com, gcc-patches at gcc dot gnu dot org, libstdc++ at gcc dot gnu dot org
- Date: Tue, 31 Jan 2006 11:00:09 -0800 (PST)
- Subject: Re: [RFC PATCH] Optionally use -mlong-double-128 by default on {powerpc{,64},s390{,x},sparc,alpha}-linux
> On Tue, Jan 31, 2006 at 04:26:08PM +0100, Andreas Schwab wrote:
> > > +# Check if TFmode long double should be used by default or not.
> > > +# Some glibc targets used DFmode long double, but with glibc 2.4
> > > +# and later they can use TFmode.
> > > +case "$target" in
> > > + powerpc*-*-*gnu* | \
> > > + sparc*-*-linux* | \
> > > + s390*-*-linux* | \
> > > + alpha*-*-linux*)
> >
> > Why powerpc*-*-*gnu*, but *-linux* for the rest?
>
> On powerpc* AFAIK GNU Hurd uses rs6000/linux*.h and therefore it is
> switching as well.
> I can surely change it to powerpc*-*-linux* and let the Hurd folks
> decide what they really want.
No, the compiler ABI choices for *-*-linux-gnu and *-*-gnu should be the
same (on every machine).